Ok I have these math promblem and I can't get it! here is is...?

Barker gets 1.3 grams of medicine a day. The dose is 25 milligrams per kilogram of his body weight. How much does Barker Weigh?

Here's the second one...
A pet had broken beak only 1.9 cm. long. After repair, the beak was 3.4 centimeters long. How many mm. of meterial was added?
7 answers 7